Maleic acid–2-vinylnaphthalene copolymer in aqueous solution: investigation of the dissociation and fluorescence quenching

Popescu, Irina; Airinei, Anton; Suflet, Dana Mihaela; Popa, Marcel

doi:10.1007/s10965-011-9630-6

Cited by 12 publications

(13 citation statements)

References 37 publications

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“…This peculiar behavior has also been observed in the case of other maleic acid copolymers for the viscosity variation with the pH [33][34][35][36].…”

Section: Because the Dissociation Of The Carboxylic Groups (And The Rsupporting

confidence: 69%

Synthesis and Investigation of Double Stimuli-Responsive Behavior ofN-Isopropylacrylamide and Maleic Acid Copolymer in Solutions

Филиппов

Тарабукина

Simonova

et al. 2015

Journal of Macromolecular Science, Part B

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Poly(N-isopropylacrylamide-co-maleic acid) (poly(NIPAAm-co-MA)) linear copolymer with comonomer molar ratio NIPAAm : MA = 94 : 6 was synthesized by free radical copolymerization. The molar mass, M sD = 28000 Da, of poly(NIPAAm-co-MA) was determined using hydrodynamic methods. The self-assembly of poly(NIPAAm-co-MA) in aqueous solution at a concentration of 0.015 g cm -3 within the pH interval from 1.8 to 10.6 and the temperature interval from 22 to 60 °C was investigated by static and dynamic light scattering. The copolymer showed a double temperature and pH responsiveness. Three types of particles, namely, macromolecules (or unimers), micellar-like structures, and loose aggregates existed in the Downloaded by [New York University] at 23:31 11 June 2015 ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 2 poly(NIPAAm-co-MA) aqueous solutions. The fraction of dissolved entities and the hydrodynamic radii of the micellar-like structures and loose aggregates depended considerably on temperature and pH. The temperature of the phase separation and the width of the phase separation interval increased with pH. An influence of pH on kinetic processes in poly(NIPAAm-co-MA) solutions was observed.

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“…This peculiar behavior has also been observed in the case of other maleic acid copolymers for the viscosity variation with the pH [33][34][35][36].…”

Section: Because the Dissociation Of The Carboxylic Groups (And The Rsupporting

confidence: 69%

Synthesis and Investigation of Double Stimuli-Responsive Behavior ofN-Isopropylacrylamide and Maleic Acid Copolymer in Solutions

Филиппов

Тарабукина

Simonova

et al. 2015

Journal of Macromolecular Science, Part B

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“…The fluorescence turn-off were further supported by the observation that the emission color of the probe solution turned from pale pink to deep purple for Cu 2+ , and from pale pink with orange red to orange for Fe 3+ , respectively (Fig. 4) [22,31,44,45].…”

Section: Time-dependence Of Pva-mrbh-cu 2+ Complexmentioning

confidence: 73%

“…S11 were plotted vs. Cu 2+ or Fe 3+ concentration and linear spectrofluoro-metric responses for Cu 2+ or Fe 3+ where I is the emission intensity of tested sample at 583 nm and I 0 is the emission intensity of metal free polymer solution [31,45,46]. The detection limits, which were calculated as three times the standard deviation of the background noise from the calibration curve, for the determination of Cu 2+ and Fe 3+ ions in the same medium were found to be 3.85×10 −6 and 8.40× 10 −7 mol/L [18,23,31,42].…”

Section: Time-dependence Of Pva-mrbh-cu 2+ Complexmentioning

confidence: 99%

“…The relative fluorescence intensity enhanced nearly 1.64, 1.55, 1.60, or 4.14 times, respectively. However, we attempted addition of Cu 2+ , Fe 3+ , Cr 3+ or Hg 2+ ions to aqueous solution of the PVA-SR6GH and did not find any significant changes in the relative fluorescence intensity [18,22,31,44,45]. Figure S12 showed the comparative response of PVA-SR6GH to Cu 2+ , Fe 3+ , Cr 3+ or Hg 2+ in aqueous solution.…”

Section: Time-dependence Of Pva-mrbh-cu 2+ Complexmentioning

confidence: 99%

“…The dependence of the relative fluorescence intensity (I/I 0 ) versus the concentration of Cu 2+ , Fe 3+ , Cr 3+ or Hg 2+ ([M n+ ]) in the certain concentration range (0 to 2.0×10 −4 , 0 to 3.0× 10 −5 , 0 to 5.0×10 −5 or 0 to 7.5×10 −5 mol/L) exhibited quite good linear correlation, which were described by Eqs. 4-7 with the correlation coefficient 0.9827, 0.9906, 0.9929 or 0.9968, respectively [31,45,46]. The detection limits for Cu 2+ , Fe 3+ , Cr 3+ and Hg 2+ ions in the same medium were found to be 6.61×10 −11 , 7.51×10 −11 , 4.45×10 −11 and 1.23×10 −12 mol/L [18,23,31,42].…”

Section: Time-dependence Of Pva-mrbh-cu 2+ Complexmentioning

confidence: 99%

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Effects of Single and Double Bonds in Linkers on Colorimetric and Fluorescent Sensing Properties of Polyving Akohol Grafting Rhodamine Hydrazides

Geng

Wang

et al. 2015

J Fluoresc

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Two rhodamine derivatives, N-mono-maleic acid amide-N'-rhodamine B hydrazide (MRBH) and N-mono-succinic acid amide-N'-rhodamine 6G hydrazide (SR6GH), were synthesized by amidation with maleic anhydride (MAH), succinic anhydride (SAH) and rhodamine B hydrazide, rhodamine 6G hydrazide, which were identified by FTIR, (1)H NMR and elemental analysis. Two water-soluble fluorescent materials (PVA-MRBH and PVA-SR6GH) were prepared via esterification reaction with N-mono-maleic acyl chloride amide-N'-rhodamine B hydrazide (MRBHCl) or N-mono-maleic acyl chloride amide-N'-rhodamine 6G hydrazide (SR6GHCl) and poly(vinyl alcohol) (PVA) in DMSO solution. The sensing behaviors of PVA-MRBH and PVA-SR6GH were explored by recording the fluorescence spectra in completely aqueous solution. Upon the addition of Cu(2+) and Fe(3+) ions to the aqueous solution of PVA-MRBH, visual color change from rose pink to amaranth and orange for Cu(2+) and Fe(3+) ions, respectively, and fluorescence quenching were observed. Titration of Cu(2+), Fe(3+), Cr(3+) or Hg(2+) into the aqueous solution of PVA-SR6GH, although they induced fluorescence enhancement, only Fe(3+) made the color changing from colorless to yellow. Moreover, other metal ions did not induce obvious changes to color and the fluorescence spectra.

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Water‐soluble polymeric chemosensor for selective detection of Hg²⁺ in aqueous solution using rhodamine‐based modified poly(acrylamide–acrylic acid)

Tong-mou

2015

Luminescence

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We report the fabrication of a novel easily available turn-on fluorescent water-soluble polymeric chemosensor for Hg(2+) ions that was simply prepared by micellar free radical polymerization of a water-insoluble organic rhodamine-based Hg(2+)-recognizing monomer (GR6GH), with hydrophilic monomers acrylamide (AM) and acrylic acid (AA). The chemical structure of the polymeric sensor was characterized by FT-IR and (1)H NMR spectroscopy. The apparent viscosity average molecular weight Mη of poly(acrylamide-acrylic acid) [poly(AM-NaAA)] and the water-soluble polymeric chemosensor poly(AM-NaAA-GR6GH) were 1.76 × 10(6) and 6.84 × 10(4) g/mol, respectively. Because of its amphiphilic property, the water-soluble polymeric chemosensor can be used as a chemosensor in aqueous media. Upon addition of Hg(2+) ions to an aqueous solution of poly(AM-NaAA-GR6GH), fluorescence enhancements were observed instantly. Moreover, other metal ions did not induce obvious changes to the fluorescence spectra. This approach may provide an easily measurable and inherently sensitive method for Hg(2+) ion detection in environmental and biological applications.

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Maleic acid–2-vinylnaphthalene copolymer in aqueous solution: investigation of the dissociation and fluorescence quenching

Cited by 12 publications

References 37 publications

Synthesis and Investigation of Double Stimuli-Responsive Behavior ofN-Isopropylacrylamide and Maleic Acid Copolymer in Solutions

Synthesis and Investigation of Double Stimuli-Responsive Behavior ofN-Isopropylacrylamide and Maleic Acid Copolymer in Solutions

Effects of Single and Double Bonds in Linkers on Colorimetric and Fluorescent Sensing Properties of Polyving Akohol Grafting Rhodamine Hydrazides

Water‐soluble polymeric chemosensor for selective detection of Hg²⁺ in aqueous solution using rhodamine‐based modified poly(acrylamide–acrylic acid)

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Maleic acid–2-vinylnaphthalene copolymer in aqueous solution: investigation of the dissociation and fluorescence quenching

Cited by 12 publications

References 37 publications

Synthesis and Investigation of Double Stimuli-Responsive Behavior ofN-Isopropylacrylamide and Maleic Acid Copolymer in Solutions

Synthesis and Investigation of Double Stimuli-Responsive Behavior ofN-Isopropylacrylamide and Maleic Acid Copolymer in Solutions

Effects of Single and Double Bonds in Linkers on Colorimetric and Fluorescent Sensing Properties of Polyving Akohol Grafting Rhodamine Hydrazides

Water‐soluble polymeric chemosensor for selective detection of Hg2+ in aqueous solution using rhodamine‐based modified poly(acrylamide–acrylic acid)

Contact Info

Product

Resources

About

Water‐soluble polymeric chemosensor for selective detection of Hg²⁺ in aqueous solution using rhodamine‐based modified poly(acrylamide–acrylic acid)